Bach L551 3MV

The Commercial Series: Bach's Legacy Serving Projection

Vincent Bach built his reputation by seeking impeccable mouthpiece quality, with the demands of both a musician and an engineer. Since the early 20th century productions, the Bach brand has established itself as a reference in brass, to the point of being associated with the idea of "lutherie" instruments and accessories for trumpeters. The Commercial series continues this tradition: a premium approach, carefully crafted, aimed at musicians who want a dense sound and strong projection, especially in the upper register.

For Which Trumpeter? Stage, Lead, and Modern Playing

This mouthpiece is intended for intermediate to professional trumpeters seeking more presence and ease in the high range without sacrificing sound quality. It is particularly suitable for contexts where one needs to "cut through" the mix: variety, big band, funk, pop, marching band, and amplified or highly dynamic playing situations. In classical music, it may also interest those who want a more direct emission and a feeling of support, provided they prefer a more projected sound aesthetic.

Sound and Design

The modified V-cup is a central element: it promotes a full timbre, stable attack, and a sensation of a well "anchored" air column. The 16.87 mm cup diameter places the mouthpiece in a versatile zone, while the medium wide rim, with a slightly flatter top than the Bach standard 3C mouthpiece, provides reassuring contact and better grip when endurance is required. The combination of throat 27 and backbore 24 contributes to response and projection, with a clear intention: facilitating the upper register while maintaining depth and density in the sound.

Recommended Compatible Accessories

To protect and maintain your mouthpiece, a universal case/pouch for brass mouthpieces and a mouthpiece cleaning brush are simple and useful everyday choices (for transport, hygiene, and finish preservation).

Technical specifications

Cup depth	Shallow	Finishing	Silver
Color	Grey

Cup diameter	16.87 mm	Compatible instrument	trumpet
Rim shape	medium-wide, with the top edge slightly flatter than the standard Bach 3C mouthpiece	Outer shape	elements from the Standard and Méga tone models
Throat	27	Product subject to specific right of withdrawal	for hygiene reasons, if the product has been opened, it must be free of any signs of use to qualify for withdrawal and be eligible for a refund or exchange
Backbore	24